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Which of the following statements is/are true about the kinetic molecular theory of gases?

source : socratic.org

Which of the following statements is/are true about the kinetic molecular theory of gases?

(I is false.)

At a given temperature, the average kinetic energy is proportional to that temperature. This means that large molecules have the same average kinetic energy as small molecules under the equipartition theorem.

Think of a mach truck it is traveling slower than a sports car but because of its greater mass it has the same kinetic energy. The smaller sports car has much less mass, but at 100 miles per hour has the same kinetic energy as the mach truck.

(II is true.)

Temperature is actually a measure of average kinetic energy. As the temperature increases the kinetic energy increases.

(III is false.)

In a vacuum there are fewer gas particles, so the mean-free path is longer. Thus, the speed of the molecules in a vacuum is higher.

6.5: More on Kinetic Molecular Theory - Chemistry LibreTexts

6.5: More on Kinetic Molecular Theory – Chemistry LibreTexts – All molecules have the same kinetic energy (mv2/2) at the same temperature, so the fraction of molecules with higher velocities will increase as m, and thus the molecular weight, decreases. The above statement that "one-third of the total velocity (of all the molecules together)…" does not mean…Gases & Kinetic Molecular Theory Examples of Multiple Choice Questions. Which statement is false? (a) The density of a gas is constant as long as its temperature remains constant. At STP, 33.6 mL of the gas has a mass of 0.087 g. What is the molecular (true) formula for the compound?This mock test of Test: Kinetic Molecular Theory for JEE helps you for every JEE entrance exam. This contains 19 Multiple Choice Questions for JEE Test Which one of the following statements is not true about the effect of an increase in temperature on the distribution of molecular speeds in a gas?

Sample Questions – Chapter 12 – Note: more than one statement may be true. Answer A: The average kinetic energy (thermal energy) of a molecule is directly related to its absolute According to kinetic theory gases, for a diatomic molecular a. the pressure exerted by the gas is proportional to mean velocity of the molecule b. the…Which of the following statements is true if HI is formed in the following reaction? Which statement is false? The average kinetic energies of molecules from samples of different "ideal" gases Use the kinetic molecular theory of gases to explain each of the following: a. a container of nonstick cooking…According to Kinetic Molecular Theory, an increase in temperature will increase the average kinetic energy of the molecules. As the particles move faster, they will likely hit the edge of the container more often. If the reaction is kept at constant pressure, they must stay farther apart, and an increase in…

Sample Questions - Chapter 12

Test: Kinetic Molecular Theory | 19 Questions MCQ Test – Kinetic-Molecular Theory. by Megan Cartwright, Ph.D. Kinetic-molecular theory makes several assumptions about. b.true. Swiss mathematician Daniel Bernoulli performed a thought experiment and developed ideas that form the basis of modern kinetic-molecular theory.The kinetic theory of matter also helps us to understand other properties of matter. It is important to realise that what we will go on to describe is only a Broadly, the kinetic theory of matter says that all matter is composed of particles which have a certain amount of energy which allows them to move at…Kinetic molecular theory, also known as the Kinetic Theory of Gases is a powerful model that seeks to explain the the measurable characteristics of gas in terms of the small scale movements of gas particles. This is almost true for very small monoatomic gases such as helium, neon or argon.

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